It is 11.5 feet.
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The area of a circle, in terms of pie, with a diameter of 36 is: about 324pi
The answer depends on what is 36 cm: the radius, diameter or some other aspect of the circle.
36/pi = 11.4591559 feet
Consider the straight side as the diameter of a circle, find the circumference of the circle, calculate half the circumference and then add it to the diameter. circumference = pi x diameter = 3.14 x 36 = 113.04 perimeter of semicircle = 1/2 circumference + 36 = 56.52 + 36 = 92.52
Area of a Circle = (pi)(r^2) Diameter = 2r If the diameter of the circle is 12, then the radius has to be 6. If the area of a circle is pi times the square of the radius, and the square of 6 is 36 (6x6), then the area of the circle is 36pi.